So the check engine light is on, until I touch the gas, then it goes off. Car seems to run just fine. I've seen it bounce the idle up and down a bit, but it settles down once warmed up, and it never shuts off on its own. Any ideas?

 

Should be able to get an error code out of it.

 

Maybe the low range plunger on the TPS sticks momentarily? If it's out of adjustment the check engine light will usually illuminate.

 

just check the codes

 

ahhh, the codes. I gotta get used to this whole "s5" thing.

 

you should be done checking them by now so whats the info>?

 

I'm at work! Car is at home.

 

oh nm

 

12. Throttle sensor - full range

 

try adjusting the tps, like an s4. it may not fix the problem. s5 is kinda lame, 2 tps's but they dont adjust seperately like they should